Method and means for treating yarn



Jan 2, 1940- y. L l.. GRIFFIN 2,185,747`

METHOD AND MEANS Fon TREAT'ING YARN v Filed Nov. 15, 195i 4'sheets-sheet 1 Jan. 2, 1940- L. GRIFFIN a1-:Tann AND MEANS Fon 'HEATINGYARN Filed Nov. Y15; 19:51 4 sheets-sheet 2 I ...FAQ .u :iE-mn..

Jan. 2, 1940. n l. GRIFFIN MET-HOD AND MEANS FOR TREATING YARN FiledNdv. 15, 1937 4 sheets-sheet 3 ill, .lill

lNyEN-roe: IRA L16@ FF/N Patented Jan. 1940 1 fumi-rep Sm aisancemmonsnniimmsroawaiia'rnwraan 't i Yfinir.;ffii-nii; ,cuadrcula gft i e:Application Ncveiiijiieir iii, 1931, serial No, 134,081;

- .1 ricmmefiorzs-zsi A Y ',endsis well` knownl in the textile trade;therefore, 'f

vThis invention relates to' larmetl-iod; andmeans for drying yarn, andvmore especlallyftcjj-that.

. method and meanswhich is adaptedsstojoperate --in conjunction withasizing apparatuaj j plurality of yarnends ranging from a Vi'ew hundredto several thousand, 'are passed through a Q sizing box. lendsus'irelusually through in a composite sheet frornseveral warp 10 beams which.are placed in a creel. When they pass through the sizingbox, a1suitable'sizing solution is deposited thereon, .vaiterewhichjitnecessarytoidry thesarne. Y yIn order to more effectively dry the sheet'oi 16 yarn, I propose to dividegthe"compositesheet into a plurality oflayers of` a lesser number or,

sized warp ends.`. This maybe done by placing a lease string between thevsheets of yarn from the several'respective beams and maintaining the midentity through the `size box' and then dividing' the sheet by means ofrollers .at diilerentpointsas Y it passes through a dryingchamber, Thisnumber vof divided sheets mayv bethe (same as the number of beam sheetsoriginally comprising the `ggecomposite warp orl they maybe combinedinto groups o f two ori more.

t A`Heretoiore greatdiicul t in maintaining a. uniform tension -on allof -the dividedsheets `of yarn during the'vdrying oper-v 30 ation,Theoretically, the 'correct manner in which to separate theindividuallayers Vv vo'uld be in such a manner that the length'of eachin'dis vildual .layer or sheet between .the size box and the drying drumwould be the same. In my present 1 '35 invention, I haveprovidedaJsuitable drying compartment with; several sets.. of adjustably mountedrollers therein overs-lwhich thedndividual layers of the yarnareadapt'edto pass. 'The distance between :the yarn contact points oneach set of' rollers is the sama, Since the apeijrollers are adjustable,thel length oi each layer"passing through the compartment can be variedin 'order to ,control the interval ottime 'that the layer will bedisposed therein while the yarn is passingfrom' ential in' tension will'create a very ,undesirable i result due to' anuneven stretch in thematernal.'f `'.irhe disadvantages or an uneven stretch in' yarn' tyhasbeen experienced I it .passes over itis ',not deemednecessary'tofdiscussfthis ieature atthis time.` y l y l f Ylt is,thereioreganiobject'of this invention to provide a drying compartmentdispedbetweenw I the sizebox and vthedrying canswith'means disposed inthe drying compartment fordividing a composite sheet ofjsiz'ed materialintoii; plurality of individual sheets,7 said dividing means being'so Yarranged wiimnfthe box `that,fiiheiengin of each v10,Y individual.divided Sheet Willbefiden'bical; th.; eby

eliminatinga diiierential`intension.'

' It is a-iurther object ofthisinvention topro-" vid-"a sizing' machineiii`l ccmbinauonfwiui n intermediate drying compartment of thejclasscle-.15 scribea'witii meansfdisposed therein forfuividing a compositesheetl ofsized "material into a vplu'-- lrality of individual sheets;-afurther means for simultaneously" varying the length of the;v sheets Ydisposedfwithin the drying compartment alike gto amount asf theyv passthrough ythe drying lcompertinent.` i y 't By the separation o!` theyarn and' partially dryingit beforeit reaches the drying cylinderfaisfiormed due io paruaieva'poraonsndu 7 consequently the yarn drymoreeasilyon the dryingcylinders. #For this reason', itis not necesj sary tomaintain the steam at as great heatfinthe cylinders -as would otherwisebe 'necesaryk Also when the yarn ispartially dried the evaporation solon the dryingcyllnders will be minimizedand the condensate on thevhoodv thereabove Vwill 'be re- I duced.A y:Bythus'redu",ing `thecondensate 'on the hood.,` the droppingvof the same onto the yarn its.'Y

eliminated;f` ,y UThis intermediateedrying compartment isvpal'f-y sticularly useful on vslaiilieis which have worn 'dryingcylinders andcannot `have a normal steamf pressure.- "Withthe-yarnpartiallyfdried-before 40l viii-reaches the cylinder,A it is notneceesary'ior the f normal amount of heat to be. presentfin orderv to copletely dry the yarn iis-would be the case wei-ethe yarn drawn directly-from andonto the'dryi'ns cylinder. l 45 Some oil the objects: cithei'nvention having been stated, other objects will appear `asthedescription proceeds when taken in connection with the accompanyingdrawings-,ein which:

Figure 1 is a 4sldeijelevationotniy invention 60 with portions inysection!iihown in conjunction'l withaslashenjv -4 g .t {lflgure is yavertical sectional vlewtaken along the' cylinder bepracticall as Figure4 is a vertical, sectional view taken along the line 4'4 in Figure 3;

Figure 5 is a sectional plan view taken along the line 5-5 in Figure 1;

5 Figure 6 is a sectional plan view taken along the line 5--5 in Figure1;

Figure '1 is an isometric view showing the means for removably mountingthe rollers in the lower portion of the drying compartment;

Figure 8 is a plan view taken along the line 8-8 in Figure 4, showing aportion of the heating unit;

Figure 9 is a vertical sectional detail view similar to the centralportion of Figure 4, but show ing a slightly modiiled form of theinvention;

Figure 10 is a sectional plan view taken along the line Ill-I0 in Figure9;

Figure 11 is an isometric view of one of the Figure 13 is a view lookingat the left-hand side of Figure 12; l e

Figure 14 is-a vertical sectional .view taken along the line |4|4 inFigure 13;`

Figure 15 is a vertical sectional detail view taken along the line |5|5in Figure 13;

Figure 16 is a sectional plan view taken along" the line |5 |5 of Figure13. f

Referringmore ,specifically to the drawings, the numeral l5 denotessuitable creel supports for rotatably supporting the ends of warp beamsaround which yarn is wound. When it is desired to treat the yarn, aLplurality of such beams are placed in supports |0 and the individualvlayers of each beam are merged into a single sheet. These sheets aredrawn over rollers |2 and I3, beneath immersion rollers |4, whichrollers are rotatably secured to sizing vat |5. The combined layersl arethen drawn between squeeze rollers I5 yand |1 and then between dressingrollers I3 and I9, which rollers are likewise rotatably mounted i'n thesize vat.

As heretofore stated, it is yvery desirable `to separate the compositesized sheet into a plurality oi' layers in order to more effectively drythe same and to prevent the warp ends from sticking or adhering onetoanother when they are finally reunited and dried. In the drawings, Ihave shown this combined sheet divided into three-layers 25, 25 and 21,and these layers are u adapted to pass into drying compartment 28through slots 29, 30 and 3|, respectively (see Figures 2 and 4). 'I'hesesame layers then pass beneath rollers 32, 33 and34 which have their endsrotatably supported by frames 35 of the 00 compartment 28. l

Eachoi.' the end frames 35 of the compartment 28 has a verticallydisposed slot 35 therein, in which is mounted for vertical slidingmovement a block 31, said block having the lower end oi' a 05 suitablethreaded rcd 38 secured thereto, which,

in turn, penetrates the upper portion of the end frame 35.

Rotatably mounted in the blocks 31 are the ends` of rollers, 4| and 42over which the 70 sheets 25, 25 and 21 pass after leaving the rollers32, 33 and 34.- Also removably mounted within the compartment 28 and atthe same level as the rollers 32, 33 and 34 is another-set of rollersnamely 45, 48 and 41, which guide the sheets 25,A

ing chamber. A second set of slots 43, 49 and 50 are disposed in thesidewall of the compartment and adjacent the rollers 45, 45 and 41 sothat the layers of yarn may pass therethrough and onto a drying cylinderwhich is rotatably 6 mounted in framework 55.

After leaving the drying cylinder 55, the combined sheet of yarn passesover a second cylinder 51 from whence it passes beneath roller 58 andabove roller 59 to a suitable take-upbeam, 10 not shown.` All `of themembers 51, 58 -and 59 are supported in the framework.

It will be seen by referring to Figure 1, the manner in which therollers 32, 33, 34, 45, 45 and 41 have their ends removably secured inthe l5 vend frames 35 of the drying compartment. This frame has aplurality of horizontally disposed slots 60 therein which are adapted toaccommodate bearing blocks 5|, in which the ends of said rollers aremounted. When these blocks 5| lhave 20 been properly positioned withinthe slots. suitable set screws 52 are screwed home to securely fastenthe blocks and rollers in proper position relative to end frame 35.

It'will also be noted that the rollers 40. 4| and 25 42 are likewiseremovably mounted within the compartment, since their ,endsy are adaptedto fit into suitable open ended slots or bearing portions 31a of blocks31 (see Figureii) The pur-V pose of making all of the rollers removableis to' B0 f facilitate the separation of the composite sheet into thedesired number of individual layers.

'Ihe composite sheet is nrst drawn through the drying compartmentina'single sheet and then the properv division is made 'according to 35previously inserted lease threads and the rollers inserted at the properpoints. 'I'he rollers 40, 4| and 42 are lowered to substantially thesame level as the rollers 32, 33,v 34, 45, 45 and 41 so that lthe properdivision can be made without producing 40 any tension upon theindividual layers.

It will be further noted by referring to Figures 2 and 4 that the sidewalls of the compartment 28 have plates 54 removably ysecured thereon bymeans of suitable screws 54o, between whichthe ,45

has been made, that is when the rollers are placed 50" at the properpositions, the plates 54 may be repositioned upon the opposed side wallsofthe compartmentso that the heat therein `wil-I be prevented fromescaping.

The compartment 23 yhas suitable troughs 28av 55 v disposed `onopposedside walls and directly above the slots 29 and 43. troughscollect any condensation which might have accumulated upon the isidewalls of the compartment'and conduct this condensate to the side. Bythus 50 conductingthe condensate, it is not .allowed to fall upon thelayers of yarn as they passthrough the drying chamber. To allow thecondensate to drop upon the layers of yarn would spot the same andproduce a defective product., The rollers 05 within the dryingcompartment vhave their ends l tapered' softhat they may be easilyinserted between the layers when a leaseis fornnad.V .Also` theserollers are cf a yhollow construction.theereby cutting down the weightof the same.

The upper ends of the rods 38 are threadably mounted in suitable gears51 which in turn are rotatably mounted in bearings 35 on the top of thecompartment. These gears'are adapted to mesh with suitable worms 53,said worms being 15 iixedly secured upon a transversely disposed shaft10. 'I'his shait is'likewise mounted in bearings 68 andhas hand wheels1| flxedly secured on each end thereof which may be turned when itisdesired to raise or lower the threaded 1 rods'38 and the rollers 40, 4|and 42.

The end walls of the compartment 28 are provided with doors 15 which maybe opened when it is desired to remove or insert any of- Each of thesedoors is held in a the rollers. closed position bymeans of a suitablelatch 16 which is adapted to engage projection 11 extending from theinterior of the compartment. A

heating unit 18 is disposed in the lowerv portion of the compartment 28in which is mounted y a continuous coiled pipo 19. This pipe is adaptedto have steam or some other suitable heating.

agent circulating therethrough so'that the proper heat will'be furnishedto the layers 25, 26 and 21 as they pass through the upper portion olthe compartment 28,

In order-to force this heat upwardly andl away from the coiledpipe 19, asuitable duct 80 f from the pipe 93 through suitable exibie tubes hasbeen provided which duct has one end thereof connected to the lowerportion ofthe heatingv unit -18 Aand its other end connected to the"ex'haust side of a suitable fan 8|. By observing Figures 2 and V3 it willbe seen that this duct, has suitable divergent plates 82 disposedtherein so that the air will be properly distributed throughout thelower portion of the heating compartment and therefore I directsubstantially an Another duct 84 has one end thereoi' secured to theupper portion of the compartment and its other end is connected to asuitable pipe 85,

said pipe 85 being adapted to communicate with This pipe 86 is adaptedto the outlet pipe 86. carry o the vapors collected by the hood 81 fromthe drying drum 55.

Special attention is called to the position thatj the rollers 32, 33,34, 45, 46 and 41 occupy relative to the rollers A40, 4|, Yand42.Therollers 32, 33, 34,'45, 46 and 41 are mounted in-a sta.-

tionary position and at substantially the sameA n But the rollers 40, 4Iand 42 may be ymentioned lengths. `In other words,L thev rollers 32, 40and 45 form an isosceles triangle which is identical to the triangleformed by rollers 33, 4|, and 46 or the rollers 34, '42and 41; and thesetriangles will remain identical to each other re' remain the same.

The length of the top layer of yarn between roller 45 and the dryingcylinder` isless than the length of the second layer between roller 46and the cylinder 55, and the length of kthe third layer between rollery41 and the cylinder 55 isn still more. Therefore, when the apparatus isfirst threaded, compensation must'be' made at the take-up roll of theSlasher, This compensa- ]l tion causes a scattering of defects suchv ashard n equal amount of air through all portions of'unit 18. f

of yarn, as all of the layers |09. gardless of the position occupied bythe rollers 40, 4| and 42. Thereiorewe mast conclude that since thelength of the layersf25, 26 and 21 while j disposed within thecompartment 28 are always equal, the 'tension of each individual layerwil wardlyv extending lever 5 spring ||1 normally forces the lever I2and its associated damper |08 to the position shown, that is', when noair is admittedy intothemotor on the take-up roll.

It may be necessary to vary the'elevation of the rollers 40, 4| and42-in order to vary this length, because" somesheets of'yarn must bedried more than others.

When desired, a suitable lubricant may be applied to the individuallayers, 25,r 26 and 21 while in a separated form. II-have secured a.ysuitable lubricant supply tank 90 in the, lower portion of the.compartment 28 andV near one Vend thereof. `This tank is disposed abovethe heating unit 18v vso that a uniform viscosity of the lubricant mayhe maintained at all times. Leading from thisvtank is a suitable pipe 9|Lwhich supplies a lubricant toY nozzlesy 92, said nozzles 92 having anyair supply-line l93parallel thereto for'supplying compressed air to thenozzles so -as to breakup or atomize the lubricant and at thev same timedraw the lubricant from the tank 90.v The nozzles v92 receive their air94. Supply vpipes 95 and 96 lead from the lubrivcant supply pipe'9|,said pipes 95 and 96 being supply-pipes 99 and |00, respectivelyparallel thereto for supplying lubricant toxthese nozzles.

'Suitable iiexible connecting pipes or tubes |0| and |02 connect pipe 99to nozzle 91 and-pipe. toy nozzle 98 to furnish the necessary air toatomize the lubricant as it passes'through the nozzles and to force itonto the layers125, 26

and 21. f

Although I have shown means for spraying the lubricant vupon the layersyof yarn rwithin the compartment, it is to` be understood that thislubricant may be placed in the size box 5, in

Amany instances and obtain good results ascompared to spraying the Lyarnwhile passing through the compartment. v

As long as an equal tensionislmaintained on the individual layers duringthisl intermediate drying operation,ran equal amountv of stretch will beobtained,resulting in a uniformv package are woundupon a single warpbeam. j l x Means have also been provided whereby the temperaturelwithinthe compartment mayl be automatically maintained vat a uniform orpredetermined point. In'orderxto eiiect this automatic means forregulating the temperature, a suitable cold air duct |05 communicateswith one side .of the compartment .28 at a point disposed above theheating unit 19. f This duct has a suitable pipe` |01 secured to itsother end in which a damperl |09 is pivotallyrmountemsat An arm I0 issecured to pivot |09 saidarm having it lowerf end pivotally secured to alink which in turn is pivoted-to the lower end oi' operating lever I|2.The lever ||2 ispivoted Vas at ||3-to a bracket ||4 and this leverisoper- 'ated by means of a suitable diaphragm motor H5, mounted on thissame bracket. Extending from the motor is'arod ||6owhoseend is pivotedto the intermediate portion .of the down- ||5. yWhen the heat dropsbelowa predetermined temperature within thecompartment-N then air isintroduced within the diaphragm mol2. A, compression f tor H to causethe lever ||2 to rotate in a counter-clockwise manner from the positionshown and thereby rotate the damper |08 to prevent cold air from beingintroduced up through pipe |01, duct |05 and into the lower portion ofthe compartment 28.

A vapor pressure bulb is also disposed within tube |2| which tube isconnected to helical tube 22. As the temperature rises the correspondinggas or vapor pressure in the bulb |20 is transmitted through the tubing|2| to the helical tube |22 which unwinds.

The tube |22 is also connected to a vertically disposed shaft |23 uponwhich a lever |24 is iixedly mounted. Secured between the free end ofthis lever and a iiapper leaf |25 is a link |28. This leaf is adapted toclose nozzle |21 when the temperature reaches a predetermined high pointwithin the housing 28. Air is supplied to this nozzle by means of a tube|29 which tube has forks |28a and |23b, the fork |29a being adapted tocommunicate with reducing valve whereas the fork |29b communicates withdiaphragm |3|. Leading from the lower portion of pressure reducing valve|30 is a tube |34. This tube has its other end connected to a suitablebore |35, said bore being adapted to communicate with air supply pipes|36, which have air strainers |3541. therein. The upper end of the borehas communicating therewith an adjustable valve seat |38 said valve seatbeing adapted to be contacted by valve cap |39. This valve cap isdisposed on a suitable rod |40, which in turn is secured to thediaphragm |3|.l The valve cap |39 is located in the upper portion ofbore |45 and the lower end of this bore communicates with pipe |45 whichleads to the diaphragm motor H5.

The operating air enters through the pipe |36 and passes through bores|35, adjustable valve seat |38, bore |45, and to the diaphragm motor||5, which when operated will cause the lever ||2 to rotate in acounter-clockwise manner in Figure 1 to close the damper |08 and preventthe cold air from being introduced into compartment 28. When thetemperaturehas reacheda predetermined high point and it is desired tooperate the damper |08 to allow cold airto enter, the gas or vaporpressure in the bulb |20 transmitted through the tubing |2| unwinds thehelical tube |22. This motion is transmitted by a link |26 to theflapper valve or leaf |25. When the control temperature is reached, thisvalve covers the orice of the nozzle |21 and prevents the further escapeof air at this point, causing a pressure to build up in the diaphragmv|3|. This diaphragm expands under pressure, and when expanded it -willmove to the right and cover seat |88. This motion unseats the cap |33from seat |88a and seats it at |38, and cuts oil' the air to thediaphragmmotor I5 at which time the air in the motor ||5 will leak out`through pipe |43 bore |45 and around rod |40 into space. quently, thespring ||1'wil1 cause the damper |08 to return to normal open positionas shown.

The temperature then begins to drop. The gas from port |45 to thediaphragm motor ||5 to close the damper |08.

Brieiiythe operation is asfollows: When pren determined high temperatureis reached 'in com- Consek partment 28, the vapor pressure in bulb |20causes the tube |22 to expand and unwind, and thus close oriice |21;diaphragm |3| is expanded which stops flow of operating air throughbores |35 and |45, air is released from diaphragm motor 5 and spring ||1then forces damper |08 to normal open position to admit cold air tocompartment 28 through pipe |01. When a predetermined lowtemperature isreached, the tube |22 is contracted, orifice |21 is opened thus allowingdiaphragm |3| to contact and place cap |39 on seat 38a; operating airenters motor ||5 pulling rod |6 to the right and rotating the damper |08transversely of the side |01 to cut off the flow of cold air intovcompartment 28 through pipe 01. l

Figures 9, 10 and 11 show a slightly modified form of the invention, inwhich like reference characters will apply to like parts, and adescription will be made of the parts which differ from those of thepreceding form. It will be noted that the bottom rollers 32, 33, 34, 45,48 and 41 are adjustablefin a horizontal plane so that a greater spreadmay be obtained between the layers of yarn 25, 26 and 21. The rollers40, 4| and 42 are mounted in an identical manner as in the precedingform. The bottom rollers are made adjustable by means of suitable slots|50 which are cut in each end frame 35 of thevcompartment 28. In each ofthese slots a suitable block |5| is slidably mounted, said block havingrotatably secured in one side thereof the endof a threaded screw |52.lThis screw is threadably secured in the end frame 35 of the compartmentand when it is desired to vary the horizontal position of the blockswithin the slots |50 the head portion |53 of the threaded screw |52 isturned. These blocks have suitable slots |54 c'ut therein in whichbearing blocks |55 are adapted to be removably secured by anysuitablemeans such as set screws |56. Each of the bearing blocks |55 hasa hole |51 therein for the accommodation of theends of the rollers whichare disposed in the lower portion of the compartment.

Although it is not possible to maintain exactly the same tension cn eachindividual layer `when using this formof the invention unless therollers 32,33 and 34 lie in a plane parallel to a plane occupied by therollers 45, 46 and 41, it is very desirable nevertheless to have thisadjustable feature, especially where a greater spread is desired betweenthe layers and the difference of tension between the individual layersis not so important. By providing these adjustable rollers it is seenthat they may be placed in almost any desired position relative to eachother, thereby providing a greater or a lesser distance between theindividual layers of. the warp while within the drying compartment..

It is, therefore, seen that I have provided a method and a kmeans fordrying yarn and applying` a lubricant if desired, which will enable oneto draw a plurality of layers of yarn through a drying compartment andat the same time, direct the yarn out of its general direction of travelso that a greater length will be disposed within the compartment and besubjected to a greater period of drying time. `Also I have provided anapparatus which will provide for the variation of the length of yarnofthe individual layers while passing throughthe drying compartment,without producing a diiferential in the tension between the individuallayers.

Figures 12 to 16, inclusive, show a slightly modied form of theinvention, in which a clamping means is employed for the individuallayers or sheets of yarn 25, 26 and 21. After all oi' the yarn from aset of warp beams has been drawn ends of another set of warp beams tothe trailing ends of the preceding set. In other words, upon theexhaustion of the yarn from one set of warp beams, another set is placedin their stead, and the leading ends of this new set are tied onto thecorresponding trailing ends of the exhausted set. The most convenientplace for eifecting this tying-in operation is prior to thev entrance ofthe yarn into the drying chamber 28. By so tying these ends in at thispoint, the rethreading of the yarn through the drying chamber 28 and theremaining parts of the machine is eliminated.

Before this tying operation is eiected, however, it is desirable toclamp the trailing ends of the sheets 25, 26 and 21 in xed positionbefore they pass the squeeze rolls |9. Therefore, I have provided aplurality of stationary jaws |60, |6| and |62 directly below the pointwhere the sheets of yarn 25, 26 and 21 enter the drying chamber 28. Thejaws are integral with plates |63, |64 and |65, respectively, saidplates being flxedly secured to the exterior side wall of the chamber 28by any suitable means such asscrews |66. These plates are spaced apartso as to provide slots 29, 30 and 3| as in the preceding form, throughwhich the layers 25, 26 and 21 are adapted to pass prior to entering thechamber 26.

It will be noted that the stationaryjaws |60, |6| and |62 are disposedon the lower side of the slots 29, 30 and 3|, the upper edge of saidjaws being flush with the lower edge of said slots.

Disposed directly above the jaws |60, |6| and |62 are shafts |68, |69and |10, respectively.-

necessary to lower the shafts |68, |69 and |10A until they rest on thestationary jaws |60, |6| and |62, respectively. When in this position,the sheets 25, 26 and 21 will be clamped.

Each of the blocks |1| has the lower end of a threaded rod |15 rotatablymounted therein, said rods extending upwardly and being adapted toloosely penetrate a bracket |16 which in turn is secured to the sidewall of chamber 28 (see Figure 15). Each of the brackets |16 has apinion |11 mounted therein said pinion being threadably secured aroundthe intermediate portion of rod |15. 'Ihis pinion is adapted tormeshwith a worm |18 which in turn is ixedly secured on transversely disposedshaft |19. The shaft |19 is also rotatably mounted in the brackets |16.Fixedly secured on each end of the shaft |19 is a hand wheel which isturned by the operator when it is desired to raise or lower the blocks|1| and their associated shafts |68, |69

and |10 to clamp or release the sheets 25, 26 and 21.

In the drawings and specification there has been set forth a preferredembodiment of the invention, and although speciiic termsV are employed,they are used in a generic and descriptive sense only, and not for thepurposes of limitation the scope of the invention being set forth in theappended claims. l

I claim: l

1. Apparatus for treating warp. yarn comprising a sizing machine havinga size box anda series of heated drums for drying the warp yarn after ithas passed through the size box, means for partially drying the yarnbefore it reaches the heated drums comprising a casing disposed betweenthe size box and the heated drums, means forheating the interior of thecasing, and means within the casing vfor splitting the sheet of warpyarn into a plurality of sheets while it passes through said compartmenton its way fromP the size box to the heated drums.'A

`2. In combination, a slasher having a size box and at least one dryingdrum and having a creel for supporting a plurality of warp beams fromwhich the warp is Withdrawn and/passed in a single sheet through thesizebox, a drying compartment disposed between the size box and the dryingdrum, means in the drying compartment for dividing the sheet of warpinto a plurality of spaced sheets and holding the spaced sheets inspaced relation while they are passing through the compartment, andmeans for automatically regulating the temperature within thecompartment.

3. In combination,a slasher having a size box and a drying drum, meansfor guiding warp yarn from a plurality of warp beams through the sizebox, means for dividing the warp after it has been passed through thesize box into a plurality of spacedv layers, a casing surrounding thesaid spaced layers of yarn, means for heating the interior of saidcompartment and means for vary-V ing the/length of the spaced layers ofyarn inv said casing.

- 4. The combination of aslasher having a size box and a dryingcylinder, a plurality of spaced rollers for forming the sheet of sizedwarp after it leaves the size box'into a plurality of superposed layers,a casing surrounding said layers and means for supplying heat to theinterior of the casing to partially dry the yarn on its travel to thedrying cylinder.

5. In a slasher apparatus having a size box vthrough which a sheet ofwarp yarn is adapted to be passed and a drying cylinder over which thesized yarn is adapted to be passed to dry the same, a casing disposedbetweenthe size-box and the drying cylinder through which the sized yarnis passed, a series of rollers in said casing for forming sheds in saidwarp, and heating means disposed in said casing fory partially dryingthe yarnas it passes through said casing.

6. Apparatus for drying yarn on its travel from the size box to thedrying cylinders of a slasher, comprising a casing provided with aplurality of superposed horizontally disposed slots on opposed sidesthereof, a plurality of rollers disposed inside the casing adjacent saidslots for forming sheds yarn comprising a casing having a plurality ofslots in opposed sides, a roller associated with each slot, a pluralityof rollers disposed one above the other centrally of the casing and at ahigher u j 70 and the drying cylinders for drying sized sheet point inthe casing than the other rollers, whereby the yarn can be formed into aplurality of sheets and conducted into said casing while wet with sizeand upwardly over the last-named rollers and then downwardly past theother rollers, and means for heating the interior of the casing whilethe yarn is being passed therethrough.

8. In a slasher having a size box and drying cylinders, apparatusdisposed between the size box and the drying cylinders tor drying sizedsheet yarn comprising a casing having a plurality of slots in opposedsides, a roller associated with each slot, a plurality of rollersdisposed one above the other centrally of the casing and at a higherpoint in the casing than the other rollers, whereby the yarn can beformed into a plurality of sheets and conducted into said casing andupwardly over the last-named rollers and then downwardly past the otherrollers, means for heating the interior of the casing while the yarn isbeing passed therethrough, and means for adiusting the said centrallydisposed rollers vertically in the casing to thereby regulate the totallength of yarnl in the casing at a time.

9. That method of treating yarn in a slashing operation which comprisesapplying a controlled amount of lubricant to a sheet of yarn while wetwith size, while passing the sheet of yarn through a closed, heatedcompartment after it emerges from a sizing box,

10. That method oi treating a sheet of warp yarn while it passes from asize box in a slasher to the drying cylinders which comprises passingthe sheet of yarn through a heated casing, dividing the sheet of yarninto a plurality of layers while it passes through the casing, applyinglubricant to the yarn while it is passing through the casing and thenpassing the yarn over a drying cylinder in a sizing machine to nally drythe same.

11. Apparatus for treating warp yarn comprising a sizing machine havinga size box and a series of heated drums for drying the warp yarn afterit has passed through the size box, a compartment disposed between thesize box and the heated drums, means for heating the interior of thecompartment, means within the compartment for splitting the sheet ofwarp yarn into a plurality of sheets while it passes through saidcompartment on its way from the size box to the heated drums, and meansdisposed between the size box `and the compartment for clamping the yarnwhen it is desired to tie in a new set of ends.

12. In combination, a slasher having a size box and at least one dryingdrum and having a creel for supporting a plurality of warp beams fromwhich thewarp is withdrawn and passed in a single sheet through the sizebox, a drying compartment disposed between the size box and the dryingdrum, means in the drying compartment for dividing the sheet oi warpinto a plurality of spaced sheets and holding the spaced sheets inspaced relation while they are passing through the compartment, meansfor automatically regulating the temperature within the compartment, andmeans disposed between the size box and the compartment for clamping theyarn when it is desired to tie in a new set of ends.

13. In combination, a slasher having a size box and a drying drum, meansfor guiding warp yarn from a plurality of warp beams through the sizebox, means for dividing the warp after it has been passed through thesize box into a plurality of spaced layers, a casing surrounding thesaid spaced layers of yarn, means for heating the interior of saidcasing, and means for varying the length of the spaced layers of yarn insaid casing, and means disposed between the size box and the casing forclamping the yarn when it is desired to tie in a new set of ends.

14. The combination of a slasher having a size box and a dryingcylinder, a plurality of spaced rollers for forming the sheet of sizedwarp after it leaves the size box into a plurality of superposed layers,a casing surrounding said layers, means for supplying heat to theinterior of the casing to partially dry the yarn on its travel to thedrying cylinder, and means disposed between the size box and the casingfor clamping the yarn when it is desired to tie in a new set of ends.

15. In a slashing apparatus having a size box through which a sheet ofwarp yarn is adapted to be passed and a drying cylinder over which thesized yarn is adapted to be passed to dry the same, a casing disposedbetween the size box and the drying cylinder through which the sizedyarn is passed, a series of rollers in said casing for forming sheds insaid warp, heating means disposed in said casing for partially dryingthe yarn vas it passes through said casing, and means disposed betweenthe size box and the casing for clamping the yarn when it is desired totie in a new set of ends.

16. In a slasher having a size box and drying cylinders, apparatus fordrying yarn on its travel from the size box to the drying cylinders of aSlasher, comprising a easing provided with a plurality of superposedhorizontally disposed slots on opposed sides thereof, a plurality ofrollers disposed inside the casing adjacent said slots for forming shedsin the yarn, a plurality of other rollers disposed above said firstrollers in said casing and over which the sheets of yarn formed by saidsheds are adapted to pass to thereby increase the total length of yarnin the casing, heating means disposed in said casing, and means disposedbetween the size box and the casing for clamping the yarn when it isdesired to tie in a new s'et of ends.

17. In a slasher having a size box and drying cylinders, apparatus fordrying sized sheet yarn comprising a casing having a plurality of slotsin opposed sides, a roller associated with each slot, a plurality ofrollers disposed one above the other centrally of the casing, and at ahigher point in the casing than the other rollers, whereby the yarn canbe formed into a plurality of sheets and conducted into said casing andupwardly over the last-named rollers and then downwardly past the otherrollers, means for heating the interior of the casing While the yarn isbeing passed therethrough, and means for automatically maintaining apredetermined temperature in the casing.

IRA L. GRIF'FlN.

